With Ubuntu 12.10 and a nvidia card, sometimes my monitor won't turn back on when the machine returns from hibernate mode. Actually it may not be the monitor but the system won't recover so I have to reboot. I tested the memory and that is working. The hard-drive seems to be fine. I usually run all the updates, hopefully an update will fix the problem.
Has anyone experienced this? It is intermittent, maybe two times a week after running it continuously.